P0736 on Ford: How to Diagnose & Fix
Reverse Incorrect Gear Ratio
2 Ford models · 2 documented issues · 1 critical
P0736 on Ford by model: symptoms, diagnosis and fix
On some Explorers with the 10R60 ten-speed automatic, engagement into gear or shifts can be harsh or delayed, sometimes with the check-engine light on and transmission codes stored. Ford attributes it to transmission-control software, the solenoid ID strategy and/or sticking valves in the main control valve body. Applies to: 2020–2023 Ford Explorer equipped with the 10R60 ten-speed automatic and showing the symptoms or codes listed in bulletin 23-2352 (the bulletin also covers 2020–2023 Aviator and 2021–2023 Bronco with the 10R60).
How to Fix
Have a Ford dealer confirm the symptom and check for later PCM/TCM software. Bulletin 23-2352 specifies a PCM/TCM software update and adaptive learning drive cycle first. If the condition remains and one of the listed codes is stored, the main control valve body is serviced; without codes, vehicles built on or before 1-Nov-2021 first get a transmission solenoid strategy reprogram, and later builds go to the valve body. Ford notes shifts can feel firmer than normal for several days while the adaptive strategy relearns. Normal warranty rules apply; this is not a recall or a promise of free repair.
Sources for this issue (1)
A limited build of 2024-2025 F-150s received automatic transmission main control valve bodies that were machined incorrectly. The defect causes reverse gear to fail outright, or — more dangerously — causes the truck to creep or lunge FORWARD while the shifter is in Reverse or Neutral. Ford recalled 269 vehicles under NHTSA 25V164000 (Ford 25S19) in March 2025, a campaign that also swept in 2024-2025 Bronco, 2024 Ranger, 2025 Mustang, 2025 Explorer and 2025 Aviator. The population is small and VIN-specific, but the failure mode is a rollaway hazard.
Common Symptoms
- No reverse / truck will not back up
- Vehicle moves forward while shifter is in Reverse
- Vehicle creeps forward in Neutral
- Transmission fault message or wrench light
How to Fix
Check the VIN against NHTSA 25V164000. Dealers replace the transmission main control valve body free of charge; owner letters were mailed April 11, 2025. If the truck moves in a direction that does not match the selected gear, stop using it and have it towed — do not rely on the parking brake alone as a workaround.
Sources for this issue (1)
P0736 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0736 mean on a Ford?
P0736 stands for "Reverse Incorrect Gear Ratio." This code means the transmission control module calculated that the actual gear ratio in reverse does not match the expected ratio. The module compares input (turbine) speed to output speed to verify the transmission is in the correct gear; a mismatch in reverse indicates slipping or a hydraulic/mechanical problem in reverse. Symptoms include the vehicle slipping in or refusing to engage reverse. Internal clutch wear, low fluid, or solenoid faults are typical causes. On Ford it is documented across 2 models: Explorer, F-150.
What are the most common causes of P0736?
The most common causes of P0736 are: Worn reverse clutches/bands (internal slippage), Low or dirty transmission fluid, Faulty shift or pressure control solenoid, Internal hydraulic pressure loss, Valve body fault, Faulty speed sensor giving bad ratio data, Faulty transmission control module. The specific cause varies by vehicle.
How much does it cost to fix P0736 on a Ford?
Repair costs vary widely with the root cause and Ford model; each issue on this page carries its own estimate where one is published.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.